#include <stdio.h>
// Minimal working example for answer to http://stackoverflow.com/questions/21917578/
int main()
{
char string[4];
int i;
scanf(" %c %c %c %c", &string
[0], &string
[1], &string
[2], &string
[3]);
for (i = 0; i < 4; i++){
}
return 0;
}
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